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Annotation of frontvm/cpu/hatari-glue.c, revision 1.1

1.1     ! root        1: /*
        !             2:   Hatari - hatari-glue.c
        !             3: 
        !             4:   This file is distributed under the GNU Public License, version 2 or at
        !             5:   your option any later version. Read the file gpl.txt for details.
        !             6: 
        !             7:   This file contains some code to glue the UAE CPU core to the rest of the
        !             8:   emulator and Hatari's "illegal" opcodes.
        !             9: */
        !            10: static char rcsid[] = "Hatari $Id: hatari-glue.c,v 1.19 2003/06/20 13:13:22 thothy Exp $";
        !            11: 
        !            12: 
        !            13: #include <stdio.h>
        !            14: 
        !            15: #include "../hardware/main.h"
        !            16: #include "../hardware/int.h"
        !            17: #include "../hardware/stMemory.h"
        !            18: 
        !            19: #include "sysdeps.h"
        !            20: #include "maccess.h"
        !            21: #include "memory.h"
        !            22: #include "newcpu.h"
        !            23: 
        !            24: #ifndef FALSE
        !            25: #define FALSE 0
        !            26: #define TRUE 1
        !            27: #endif
        !            28: 
        !            29: 
        !            30: int illegal_mem = FALSE;
        !            31: int address_space_24 = TRUE;
        !            32: int cpu_level = 0;              /* 68000 (default) */
        !            33: int cpu_compatible = FALSE;
        !            34: 
        !            35: int requestedInterrupt = -1;
        !            36: 
        !            37: 
        !            38: /* Reset custom chips */
        !            39: void customreset(void)
        !            40: {
        !            41:   requestedInterrupt = -1;
        !            42: }
        !            43: 
        !            44: 
        !            45: /* Return interrupt number (1 - 7), -1 means no interrupt. */
        !            46: int intlev(void)
        !            47: {
        !            48:   int ret = requestedInterrupt;
        !            49:   requestedInterrupt = -1;
        !            50: 
        !            51:   return ret;
        !            52: }
        !            53: 
        !            54: 
        !            55: /* Initialize 680x0 emulation */
        !            56: int Init680x0(void)
        !            57: {
        !            58:   /* Note: memory_init() is now done in tos.c */
        !            59: 
        !            60:   init_m68k();
        !            61:   return TRUE;
        !            62: }
        !            63: 
        !            64: 
        !            65: /* Deinitialize 680x0 emulation */
        !            66: void Exit680x0(void)
        !            67: {
        !            68:   memory_uninit();
        !            69: }
        !            70: 
        !            71: 
        !            72: /* Reset and start 680x0 emulation */
        !            73: void Start680x0(void)
        !            74: {
        !            75:   m68k_reset();
        !            76:   m68k_go(TRUE);
        !            77: }
        !            78: 
        !            79: 
        !            80: /* Check if the CPU type has been changed */
        !            81: void check_prefs_changed_cpu(int new_level, int new_compatible)
        !            82: {
        !            83:   if(cpu_level!=new_level || cpu_compatible!=new_compatible)
        !            84:   {
        !            85:     cpu_level = new_level;
        !            86:     cpu_compatible = new_compatible;
        !            87:     set_special(SPCFLAG_MODE_CHANGE);
        !            88:     if (table68k)
        !            89:       build_cpufunctbl ();
        !            90:   }
        !            91: }
        !            92: 
        !            93: 
        !            94: 

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